Add fuzzer that reads test input and creates a color profile
from it (or bails if not). Given that profile |test|, create
another profile |srgb| used to transform colors to/from when
running the color transform fuzzer test stage.

Test ICC version 2 profiles only since ICC version 4 support
in QCMS is not enabled in Chrome.

Add third_party/qcms/DEPS: allows qcms_color_space_fuzzer to
use //base and //testing code.

Speed: achieves ~2300 execs/s on Mac Air. Seed corpus of ICC
profiles uploaded to qcms_color_space_fuzzer GCS bucket.

Set max_len to 4Meg (color profiles can be large and this is
the limit that Chrome accepts), and use the ICC profile dict
added in http://crrev.com/461603

TBR=inferno@chromium.org
BUG=708016

Review-Url: https://codereview.chromium.org/2807083002
Cr-Commit-Position: refs/heads/master@{#464398}